🚀 go-pugleaf

Rich Wilkman <rwilkman@inprise.com> skrev i
diskussionsgruppsmeddelandet:3804F004.9221240F@inprise.com...
> Lois:
>
> Well, you could write your own Look&Feel (assuming that you are using
> JFC as your component base) and have the L&F do all the work of setting
> everything to the same background color.
>
> Beyond that, I can't think of an "easy" way to do this type of thing at
> runtime.  You could write your own containers and enforce the setting of
> colors to the container color on the add() call.
>

We do it this way:
First create a subclass of MetalTheme (this is just a copy of
BasicMetalTheme, but with
the private colors changed to public).

class MyMetalTheme extends MetalTheme {
   static public ColorUIResource primary1 = new ColorUIResource(102, 102,
153);
   static public ColorUIResource primary2 = new ColorUIResource(153, 153,
204);
   static public ColorUIResource primary3 = new ColorUIResource(204, 204,
255);
   static public ColorUIResource secondary1 = new ColorUIResource(102, 102,
102);
   static public ColorUIResource secondary2 = new ColorUIResource(153, 153,
153);
   static public ColorUIResource secondary3 = new ColorUIResource(204, 204,
204);
   ...
   // etc. See javax.swing.plaf.metal.BasicMetalTheme
};
static MyMetalTheme theme=new MyMetalTheme();
{
   // Somewhere in the initialization code
   MetalLookAndFeel plaf = (MetalLookAndFeel)UIManager.getLookAndFeel();
   plaf.setCurrentTheme(theme);
}

Then, to change colors (background is secondary3, I think):

theme.secondary3=new ColorUIResource(theColor);
for (every frame)
  SwingUtilities.updateComponentTreeUI(frame);

Drawbacks: works only with MetalLookAndFeel.

HTH!